Ultra-low transmission loss Highly heat resistant Multi-layer circuit board materials MEGTRON7 | R-5785(N), R-5785(GN), R-5785(GE), R-5785(R)

Ultra-low transmission loss Highly heat resistant Multi-layer circuit board materials MEGTRON7 R-5785(N), R-5785(GN), R-5785(GE), R-5785(R)

 

  1. Due to our industry leading low dielectric constant and dissipation factor, these materials are suitable for high-speed data transmission by servers and routers using high-layercount, large-size PCB designs.

Circuit Board Materials

  • Part Number

Low Dk glass cloth

Laminate R-5785(N)
Prepreg R-5680(N)

Low Dk glass cloth/ Improved processability

Laminate R-5785(GN)
Prepreg R-5680(GN)

Normal glass cloth/ Improved processability

Laminate R-5785(GE)
Prepreg R-5680(GE)

Buried Resistor Copper Foil

Laminate R-5785(R)

  • Application
  • Detailed use
Network
Aerospace
・Network
・Wireless
・Aerospace
ICT infrastructure equipment, Supercomputer, Measuring instrument, Antenna(Base station, Automotive millimeter-wave radar), Aerospace, Etc.

Properties

Dk 3.31 Df 0.0023
@14GHz
Tg(DSC)
200°C
T288(with copper)
>120min

Video

Transmission loss performance Ranking in MEGTRON series

Transmission loss performance Ranking in MEGTRON series

Frequency dependence by Transmission loss

Frequency dependence by Transmission loss

Heat resistance of High Multi-layered

Heat resistance of High Multi-layered

Buried Resistor Copper Foil specification

Buried Resistor Copper Foil specification

General properties

Item Test method Condition Unit MEGTRON7
R-5785(N)
Low Dk
glass cloth
MEGTRON7
R-5785(GN)
Low Dk
glass cloth
MEGTRON7
R-5785(GE)
Normal
glass cloth
Glass transition temp.(Tg) DSC A °C 200 200 200
CTE z-axis α1 IPC-TM-650
2.4.24
A ppm/°C 42 42 42
α2 280 280 280
T288(with copper) IPC-TM-650
2.4.24.1
A min >120 >120 >120
Dielectric constant(Dk) 13GHz
14GHz
Balanced-type
circular disk
resonator
C-24/23/50 3.31 [14GHz] 3.31 [14GHz] 3.60 [13GHz]
Dissipation factor(Df) 0.0023 [14GHz] 0.0023 [14GHz] 0.0034 [13GHz]
Peel strength* 1oz(35μm) IPC-TM-650
2.4.8
A kN/m 0.8 0.8 0.8

The sample thickness is 0.75mm.
* R-5785(GN), R-5785(GE): H-VLP2 Copper, R-5785(N): H-VLP Copper

The above data are typical values and not guaranteed values.